since they kill more people than guns do.
legally it has to be a seperate organization
No, I don't see them selling guns on the black market to drug gangs etc. The people who buy the drugs put the guns in their hands with their money because the drug prohibitionists took the courts away from them.

I don't like the NRA leadership, and there are better organizations. I actually prefer the IFOA
That said, do you think Bloomberg cares about the victims of knife violence? About the many people who defend themselves with a gun each year? How about the PR flack he hired to head MDA? Did she care about GMO victims when she worked for Monsanto as a propagandist? Does Bloomberg care about the criminal activities of many of his members? Many MAIG members can't legally possess a gun. Like the latest bust, he was a convicted felon when he was elected mayor, now his DUI bust, punching out a clock and making racist rants is a You Tube sensation. That is before you get to the sexual harassing mayor of San Diego, mayor of Detroit, oh and the MAIG member who threatened someone with a gun. The NRA leadership has its head up its ass and has a bunch of ass clowns on the board of directors, but at least the seem more law abiding.